<template>
	<view v-if="goods_info.goods_name" class="goods-detail-container">
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
			<swiper-item v-for="(item,index) in goods_info.pics" :key="index">
				<image :src="item.pics_big" @click="preview(index)"></image>
			</swiper-item>
		</swiper>
		
		<view class="goods-info-box">
			<view class="price">
				{{goods_info.goods_price}}
			</view>
			<view class="goods-info-body">
				<view class="goods-name">
					{{goods_info.goods_name}}
				</view>
				<view class="favi">
					<uni-icons type="star" size="18" color="gray"></uni-icons>
					<text>收藏</text>
				</view>
			</view>
			<view class="yf">
				快递：免运费
			</view>
		</view>
		
		<rich-text :nodes="goods_info.goods_introduce"></rich-text>
		
		<view class="goods_nav">
			<uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick" @buttonClick="buttonClick" />
		</view>
	</view>
</template>

<script>
	import {mapState,mapMutations,mapGetters} from 'vuex'
	export default {
		computed:{
			...mapState('m_cart',[]),
			...mapGetters('m_cart',['total'])
		},
		watch:{
			// total(newVal){
			// 	const findResult = this.options.find(x=>x.text === '购物车')
			// 	if(findResult){
			// 		findResult.info = newVal
			// 	}
			// }
			total:{
				handler(newVal){
						const findResult = this.options.find(x=>x.text === '购物车')
						if(findResult){
							findResult.info = newVal
						}
				},
				immediate:true
			}
		},
		data() {
			return {
				goods_info:{},
				options:[{
				  icon: 'shop',
				  text: '店铺'
				}, {
				  icon: 'cart',
				  text: '购物车',
				  info: 0
				}],
    // 右侧按钮组的配置对象
    buttonGroup: [{
        text: '加入购物车',
        backgroundColor: '#ff0000',
        color: '#fff'
      },
      {
        text: '立即购买',
        backgroundColor: '#ffa200',
        color: '#fff'
      }
    ]
			};
		},
		onLoad(options) {
			const goods_id = options.goods_id
			this.getGoodsDetail(goods_id)
		},
		methods:{
			...mapMutations('m_cart',['addToCart']),
			async getGoodsDetail(goods_id){
				const {data:res} = await uni.$http.get('/api/public/v1/goods/detail',{goods_id})
				if(res.meta.status !== 200) return uni.$showMsg()
				
				res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g,'<img style="display:block;"').replace(/webp/g,'jpg')
				
				this.goods_info = res.message
			},
			preview(index){
				uni.previewImage({
					current:index,
					urls:this.goods_info.pics.map(item => item.pics_big)
				})
			},
			onClick(e){
				if(e.content.text === '购物车'){
					uni.switchTab({
						url:'/pages/cart/cart'
					})
				}
			},
			buttonClick(e){
				if (e.content.text === '加入购物车') {
				
				      // 2. 组织一个商品的信息对象
				      const goods = {
				         goods_id: this.goods_info.goods_id,       // 商品的Id
				         goods_name: this.goods_info.goods_name,   // 商品的名称
				         goods_price: this.goods_info.goods_price, // 商品的价格
				         goods_count: 1,                           // 商品的数量
				         goods_small_logo: this.goods_info.goods_small_logo, // 商品的图片
				         goods_state: true                         // 商品的勾选状态
				      }
				
				      // 3. 通过 this 调用映射过来的 addToCart 方法，把商品信息对象存储到购物车中
				      this.addToCart(goods)
				
				   }
			}
		}
	}
</script>

<style lang="scss">
swiper{
	height: 750rpx;
	
	image{
		width: 100%;
		height: 100%;
	}
	
}
.goods-info-box {
  padding: 10px;
  padding-right: 0;

  .price {
    color: #c00000;
    font-size: 18px;
    margin: 10px 0;
  }

  .goods-info-body {
    display: flex;
    justify-content: space-between;

    .goods-name {
      font-size: 13px;
      padding-right: 10px;
    }
    // 收藏区域
    .favi {
      width: 120px;
      font-size: 12px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      border-left: 1px solid #efefef;
      color: gray;
    }
  }

  // 运费
  .yf {
    margin: 10px 0;
    font-size: 12px;
    color: gray;
  }
}

.goods_nav{
	position: fixed;
	bottom: 0;
	left: 0;
	width: 100%;
}

.goods-detail-container{
	padding-bottom: 50px;
}
</style>
